601.

Lunar occultation of Antares The Moon will pass in front of Antares (Alpha Scorpii), creating a lunar occultation visible from the Contiguous United States, Mexico and Canada. Thu, 24 Aug 2023 at 22:29 EDT (328 days ago) in Scorpius

602.

Asteroid 8 Flora at opposition Asteroid 8 Flora makes closest approach to the Earth. Sat, 26 Aug 2023 at 17:34 EDT (326 days ago) in Aquarius

603.

Saturn at opposition Saturn lies in the opposite direction to the Sun in the sky, making it slightly closer, brighter and larger than at other times. It is also optimally positioned to be observable for much of the night. Sun, 27 Aug 2023 at 04:20 EDT (325 days ago) in Aquarius

604.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Mon, 28 Aug 2023 at 22:11 EDT (324 days ago) in Aries

605.

The Moon at aphelion The Moon recedes to its orbit's furthest point from the Sun, which happens each month around the time of full moon. Tue, 29 Aug 2023 at 04:36 EDT (323 days ago) in Capricornus

606.

The Moon at perigee The Moon makes its monthly closest approach to the Earth, making it appear fractionally larger than at other times of the month. Wed, 30 Aug 2023 at 11:54 EDT (322 days ago) in Aquarius

607.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°29'. Wed, 30 Aug 2023 at 14:07 EDT (322 days ago) in Aquarius

608.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Wed, 30 Aug 2023 at 15:43 EDT (322 days ago) in Aquarius

609.

Blue Moon The Moon reaches full phase and is visible for much of the night. Wed, 30 Aug 2023 at 21:35 EDT (322 days ago) in Aquarius

610.

Lunar occultation of Neptune The Moon will pass in front of Neptune creating a lunar occultation, though it will open be visible only at sea. Fri, 01 Sep 2023 at 04:21 EDT (320 days ago) in Pisces

611.

Aurigid meteor shower 2023 The Aurigid meteor shower reaches its peak. Fri, 01 Sep 2023 (320 days ago) in Auriga

612.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Mon, 04 Sep 2023 at 10:13 EDT (317 days ago) in Aries

613.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Mon, 04 Sep 2023 at 13:37 EDT (317 days ago) in Aries

614.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 3°18'. Mon, 04 Sep 2023 at 15:47 EDT (317 days ago) in Aries

615.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Tue, 05 Sep 2023 at 16:51 EDT (316 days ago) in Taurus

616.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Wed, 06 Sep 2023 at 07:04 EDT (315 days ago) in Leo

617.

Moon at Last Quarter The Moon reaches last quarter phase – rising in the east at around midnight and appearing high in the sky by sunrise. Wed, 06 Sep 2023 at 18:21 EDT (315 days ago) in Taurus

618.

Lunar occultation of Beta Tauri The Moon will pass in front of Beta Tauri (Elnath) creating a lunar occultation, though it will open be visible only at sea. Thu, 07 Sep 2023 at 11:20 EDT (314 days ago) in Taurus

619.

September ε-Perseid meteor shower 2023 The September ε-Perseid meteor shower reaches its peak. Sat, 09 Sep 2023 (312 days ago) in Perseus

620.

Comet C/2023 P1 (Nishimura) passes perigee Comet C/2023 P1 (Nishimura) makes its closest approach to the Earth. Tue, 12 Sep 2023 (309 days ago) in Leo